Traction-engine.



L. S. OLAITOR & R. G. MAHAGAN.

TRACTION ENGINE.

APPLICATION IILED 00T.25, 190s.

1 84,069. Patented Jan. 13, 1914.

3 SHEETS-SHEET 1.

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L. S. GLAITOR & R. G. MAHAGAN.

TRACTION ENGINE.

APPLICATION FILED 0013.25, 1909.

1,084,069, Patented Jan. 13,1914.

3 SHEETS-SHEET 2.

a I m \S L. S. GLAITOR & R. GPMAHAGAN. TRACTION EIHIHNE.-

APPLICATION 11.51) 0(1T.25, 1909.

1,084,069, Patented Jan. 13, 1914.

3 SHEETS-SHEET 3.

J6 1mm dil LILBURN S. CLAITOR AND C. lVIhI-IAGAN, OF PETERSBURG, TEXAS.

TRACTION-ENGINE.

nosaoeo.

Application filed October 25, 1909.

To all whom it may concern:

Be it known that we, LILnUnN E3. Cnnrron and Ross C. litarmexx, citizensof the United States, residing at Petersburg, in the county of Hale,State of Texas, have invented a new and useful Traction-Engine, of whichthe following is a specification.

The present invention appertains to a novel and improved traction engineor tractor.

it is the object of the present invention to provide a novel or uniqueassemblage of the tractor frame or body, the steam engines forpropelling the machine, the steam boiler, and the traction wheels,whereby the combination of the said devices will be a highly desirableand efficient one, the frame or body being of such peculiarconstruction, as to enable the combination to be carried out to the endsdesired.

The invention has been illustrated in its preferred embodiment in theaccompanying drawings, wherein Figure 1 is a side elevation of theimproved tractor. Fig 2 is a longitudinal sectional view thereof. Fig. 3is a transverse sectional view taken on the line 33 of Fig. 1. Fig. i isa transverse sectional view taken on the line 4elof Fig. 1.

In carrying out the invention there is provided a unique frame or body,embodying front and rear sections. The front and rear frame sectionsembody the respective side beams 1 and 5, the forward portions of therear beams 5 resting on the rear portions of the front beams 1, for aconsiderable extent. The forward ends of the beams 1 are mounted uponthe steering axle 2 having the wheels 3 journaled on its ends, anysuitable means being provided for steering the axle 2, but inasmuch asthe said steering means forms no part of the present invention, it neednot be shown nor described. A tender 4 is mounted upon the forwardportion of the front frame section or its beams 1. Suitable bolts, orother securing members 6 are employed for clamping or securing theoverlapping ends of the beams 1 and 5 together, whereby the overlappingportions of the beams are firmly attached, and present relatively largebearing surfaces or bases for supporting the steam engines, ashereinafter described.

Bearings 7 are secured to the bottoms of the rear beams 5 in rear of thebeams 1,

and a rear axle or driving shaft 8 is jour- Speeifieation of LettersPatent.

Patented Jan. 13,1t914t.

Serial No. 524,452.

nalcd through the bearings 7. Steam engines are carried at the outersides of the overlapped end portions of the respective beams, the steamengines embodying the cylinders 9, which are preferably attached to theend portions of the rear beams 5, although it is to be noted that theoverlapped end portions of the front and rear beams provide relativelylarge bases for holding the cylinders of the steam engines in position.The terminals of the shaft or axle 8 project beyond the beams 5 and havedisks 1.0 fixed thereon. The disks are pro vided with the wrist pins 11,and the cross heads 12 of the steam engines are operatively connectedwith the wrist pins 11 by the connecting rods or pitmen 13. The wristpins 11 at the opposite sides are pref erably set at such angles, as toprevent the two engines from coming to dead center simultaneously, whichwould be objection able.

Standards or pedestals 14lare mounted upon the side beams 5 of the rearframe section. preferably midway between the ends of the beam 5, and areprovided at. their upper ends with the trunnion bearings 15. The steamboiler 16 is disposed above the rear frame section between the pedestals1 1, and is provided at its sides with the trunnions 17 j ournaled inthe bearings 15, whereby the boiler is pivotally supported over the rearframe section.

The steam boiler 16 is preferably of the marine type, known as returnfire tube boiler, wherein the stack 18 is located above the fire box 19.In this connection, it is to be observed that the fire box 19 dependsbetween the overlapped portions of the beams 1 and 5, and faces thetender 1 or the front frame section. This is advantageous for the reasonthat the fire box is somewhat housed between the overlapped portions ofthe beams, and the engineer may be convenient-ly positioned on the frontframe section, to feed the fuel into the fire box, it being noted thatthe front frame section is disposed on a lower level than the rear framesection.

The boiler 16 is provided with the usual steam dome 20, to which a pairof flexible pipes 21 are connected, the pipes 21 being connected to theinlet pipes 22 of the re spective steam engines, by slip joint connections as indicated at 23. Thus, flexible connections are providedbetween the pivoted boiler and the steam engines, in order that theboiler may be adjusted or swung with out interfering with the operationof the engines.

An adjusting shaft 2% is journaled in bearings 25 secured on the forwardends of the beam 5, and stands in advance of the fire box 19. Arms 25are secured to the terminals of the shaft 24, and are provided withslots 27 at their free ends receiving studs 28 attached to the sides ofthe fire box 19. A gear segment 29 is attached to the shaft Q-t adjacentone end and meshes with a worm 30 mounted upon vertically disposedshaft- 31 journaled to the for ard end portion of one of the beams 5,and provided at its upper end with a hand wheel 32 accessible from thefront frame section. It is to be observed in this connection, that therelation of the beams of the front and rear frame sections, and the tirebox of the pivoted boiler supported between the overlapped portions ofthe beams, is of peculiar advantage, for the reason that the adjustingmeans connecting the sides of the fire box and the forward ends of therear beams, has a unique relation therewith.

By the arrangement just described, it will be apparent that by rotatingthe shaft 31 through the medium of the hand wheel, the shaft 24 may berotated so as to swing the arms 26 and to consequently swing the boiler.In this manner, the boiler may be constantly brought to a levelposition, when the machine is traversing inclined or declined roads orsurfaces.

A pair of traction wheels 38 are ournaled between the rear beams 5underneath the boiler and in rear of its fire box, the traction wheels33 being journaled on the axle or shaft 8. The rims 3st of the tractionwheels are relatively wide, and juxtaposed, so as to fill in the spacebetween the beams 5. The rims 34.- are also provided with ribs 85 forfacilitating the tractive effort.

A compensating gear mechanism or differential 36 is located upon theaxle S intermediate the ends thereof, and is also connected with thehubs of the traction wheels 33. This mechanism or differential eomprisesa master disk 36, which is fixed to the intermediate portion of the axle8, and is provided at equal distances from its center, with a series ofbevel pinions 38 journaled for rotation in openings 37 and having theiraxes in a plane at right angles to the axis of the axle 8. Bevel gearwheels 39 are fixed to the inner ends of the hubs 40 of the tractionwheels 33 and mesh with the bevel pinions 38 carried by the master disk36. By this arrangement, when the axle or shaft is rotated by the steamengines, the traction wheels will be driven through the medium of thedifferential or compensating mechanism in order to permit the respectivetraction wheels to rotate at different velocities, as when the machineis rounding a curve, both of the traction wheels being driven undervarious conditions.

In some instances, it may be desirable that the traction wheels 33 beconstrained to rotate in unison, and to this end, the master disk 36 isprovided upon its periphery with perforated lugs f1 which are adapted toregister with perforated lugs to carried by the bevel gears 39 in orderthat securing bolts 43 may be passed through the lugs with the axle orshaft 8.

The salient or cardinal feature of the present invention resides in theprovision of the peculiar frame, and the unique combination therewith ofthe steam engines, pivoted boiler, adjusting means for the boiler,traction wheels, and the connections between the boiler and steamengines.

Having described the invention, what is claimed is In a tractor, a frameembodying front. and rear sections, each frame section embodying sidebeams, the forward end portions of the rear beams resting on the rearend portions of the respective front beams, means for clamping theoverlapped end portions of the beams together, steam engines carried atthe outer sides of the overlapped end portions of the beams, pedestalscarried by the rear beams, a steam boiler trunnioned between thepedestals over the rear frame sections and having its fire box dependingbetween the overlapped end portions of the beams and facing the frontframe section, adjusting means operably connecting the frontends of therear beams and the fire box of the boiler, traction wheels j ournaledbetween the rear beams under the boiler and in rear of its fire box andoperatively connected with the respective steam engines, and flexibleconnections between the boiler and steam engines.

In testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

LILBURN S. CLAITOH. ROSS C. MAHAGAN.

Vitnesses:

J. VT. CAMPBELL, W. H. Box.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

